Thread: Viper T56 6 Speed in a 1966 GTO Install Guide (long, lots of pics!)
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Old 12-21-2009, 12:31 PM
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69Customs 69Customs is offline
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Very Good Info. Would like to know how the .50 overdrive with the 4.56 rear works out?
What RPM does it go down highway at 70MPH?
Thanks

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